If a video exists I've never seen it. There are a lot of writeups on how to replace the seals, "Peter_H-Airstreamer" has several good descriptions of how it's done.
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Air forums # 1674
1974 20' Argosy Motor Home
1975 24' Argosy Motor Home
1974 31' Excella trailer (parting out, as of 4/1/2015 I have wheels & windows left to sell)
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